I don't suppose you're planning to tell us how the XBees are configured in this thread, either.

Yes, the XBees CAN send and receive. An XBee receives from another one on the same PAN that has DL equal to its MY. It sends to whichever XBee has the MY address that it has as its DL.

If one XBee, we'll call it Fred, has PAN ID = 3128, MY = 8001, and DL = 4382, and another XBee, we'll call it Sue, has PAN ID = 3128, MY = 4382, and DL = 3329, then Sue will be able to receive from Fred, but will NOT be able to talk to Fred.

That really sounds like your situation. You need to get Fred and Sue on the same page.

vima

And a little more on that since in the future I would like to expand it with ore:

I have FRED, SUE, NICK. I want Fred to send to everyone, and Sue and Nick to send back only to Fred.

2) I read somewhere that if you want the sending data to be received from all the XBee's with the same PAN ID, then DL and MY must be set to 0. So I left them to 0, and then whatever I send from from Fred can be read from every XBee, and whatever I send from Sue is not read by anyone? So what I did is something like:

vima

Do I set all of the three to be end-devices or FRED must be co-ordinator?

End device and coordinator are series 2 terms. Are you SURE you have, and are configuring, series 1 models?

yes sure. those terms where not visible in the X-CTU but I found them on a tutorial. Anyway since there is nothing else to configure either my connection are wrong or my XBee's stopeed working. I will check it out again since now I do not see any communication at all (not even the one I said in the first post that FRED could send to anyone but not was not able to read back).